// Fires up an instance, finds its root volume ID, takes a snapshot, then
// terminates the instance.
private Snapshot createSnapshot() throws RunNodesException {
String instanceId = null;
try {
RunningInstance instance =
getOnlyElement(
concat(
ec2Client
.getInstanceServices()
.runInstancesInRegion(regionId, null, imageId, 1, 1)));
instanceId = instance.getId();
assertTrue(runningTester.apply(instance), instanceId + "didn't achieve the state running!");
instance =
getOnlyElement(
concat(
ec2Client.getInstanceServices().describeInstancesInRegion(regionId, instanceId)));
BlockDevice device = instance.getEbsBlockDevices().get("/dev/sda1");
assertNotNull(device, "device: /dev/sda1 not present on: " + instance);
Snapshot snapshot =
ec2Client
.getElasticBlockStoreServices()
.createSnapshotInRegion(regionId, device.getVolumeId());
snapshotsToDelete.add(snapshot.getId());
return snapshot;
} finally {
if (instanceId != null)
ec2Client.getInstanceServices().terminateInstancesInRegion(regionId, instanceId);
}
}
@Override
@AfterClass(groups = {"integration", "live"})
protected void tearDownContext() {
for (String imageId : imagesToDeregister) client.deregisterImageInRegion(regionId, imageId);
for (String snapshotId : snapshotsToDelete)
ec2Client.getElasticBlockStoreServices().deleteSnapshotInRegion(regionId, snapshotId);
super.tearDownContext();
}